USB Flash reader under RELENG_6: force GEOM rescan

[Dmitry Morozovsky]

On Thu, 9 Feb 2006, Doug White wrote:

DW> > OF>  > dd if=/dev/da0 of=/dev/da0 count=1
DW> > OF>  >
DW> > OF>  > which results in error, but actually create GEOMs
DW> > OF>
DW> > OF> The following should work as well, without giving an error:
DW> > OF>
DW> > OF> dd if=/dev/null of=/dev/da0 count=0
DW> > OF>
DW> > OF> It opens the device for writing (without actually writing
DW> > OF> anything) and immediately closes it again, which causes
DW> > OF> devfs to be "triggered".
DW> >
DW> > Aha, actually, it works. Thanks.
DW> 
DW> How about 'fdisk da0'? :)

That was the first I checked. Nope. Trying to update MBR on the flash works, 
but then dd is a bit simpler.

DW> I have a usb drive that takes a while to become ready after being
DW> inserted. It initially generates errors when attempting to access it.
DW> Yours may have a similar issue.

No, that's not my case. In my case there is no USB event when flash is 
inserted/ejected (reader is internal).

Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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